Verse 1
Moreover, brethren, we make known to you -- We want to inform you. The purpose for which Paul informed them of the liberality of the churches of Macedonia was to excite them to similar liberality.
the grace of God -- The generosity of the churches of Macedonia was motivated by God’s grace. Paul did not merely commend those churches for a noble human work, but instead gave the credit to God for what He did through them. - MSB
grace -- The word “grace” (charis) is used over ten times in chapters 8 and 9. It is used in the sense of (1) God’s undeserved, unmerited love in Christ, 2 Corinthians 8:1, 2 Corinthians 8:9; 2 Corinthians 9:8, 2 Corinthians 9:14; (2) favor/privilege, 2 Corinthians 8:4; (3) the offering to Jerusalem, 2 Corinthians 8:1, 2 Corinthians 8:6-7, 2 Corinthians 8:19; or (4) thanks, 2 Corinthians 8:16; 2 Corinthians 9:15. Notice that grace is understood as referring to God’s undeserved, unmerited love in Christ or as a way of referring to the contribution from Paul’s Gentile churches to the mother church in Jerusalem. The Greek term has a wide semantical field. - Utley
of the grace of God ... -- The favor which God had shown them in exciting a spirit of liberality, and in enabling them to contribute to the fund for supplying the needs of the poor saints at Jerusalem.
The word “grace” (
the churches of Macedonia -- Philippi, Thessalonica, Berea. For an account of Macedonia, see Acts 16:9; Romans 15:26 .
Of these churches, that at Philippi seems to have been most distinguished for liberality Philippians 4:10, Philippians 4:15-16, Philippians 4:18, though it is probable that other churches contributed according to their ability, as they are commended (compare 2 Corinthians 9:2) without distinction.